/wʊd ||; wυd/noun1 [U] [C] the hard substance that trees are made of 木；木材: He chopped some wood for the fire. 他劈了些木头当柴烧。Pine is a softwood. 松木是软木材。 ☞picture on page C2 见C2页插图
2 [C] (often plural 常用复数) an area of land that is covered with trees. A wood is smaller than a forest 树林: a walk in the woods 在树林里散步
touch wood (
US 美) ;
knock on wood an expression that people use (often while touching a piece of wood) to prevent bad luck （避邪用语，常边说边触摸木头）好运常在:
I've been driving here for 20 years and I haven't had an accident yet -- touch wood! 我在这儿开车开了20年，从没出过意外─愿好运常在！